September
September · May · August
United States · 1991–2020
September leads for comfortable weather in Greenup: typically 26.6°C by day, 12.7°C at night, with 102 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · August
August · July · June
October · April · May
The weakest month is January, scoring 5 against September’s 73 — days reach only 5.5°C, 18° below the 24°C the score treats as ideal.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 5.5°C | -5°C | 81 mm | 10.3 | 9 h 45 | 5 | Good coverage |
| February | 7.2°C | -4.3°C | 89 mm | 10.8 | 10 h 42 | 5 | Good coverage |
| March | 13.3°C | -0.1°C | 105 mm | 11.7 | 11 h 50 | 20 | Good coverage |
| April | 20.1°C | 4.6°C | 118 mm | 10.6 | 13 h 09 | 50 | Good coverage |
| May | 24.1°C | 10°C | 114 mm | 12.4 | 14 h 15 | 71 | Good coverage |
| June | 28.1°C | 14.5°C | 125 mm | 11.2 | 14 h 51 | 66 | Good coverage |
| July | 29.6°C | 17°C | 140 mm | 10.9 | 14 h 37 | 56 | Good coverage |
| August | 29.4°C | 16.1°C | 90 mm | 8.9 | 13 h 40 | 67 | Good coverage |
| September | 26.6°C | 12.7°C | 102 mm | 8.1 | 12 h 23 | 73 | Good coverage |
| October | 20.3°C | 5.8°C | 96 mm | 9 | 11 h 07 | 57 | Good coverage |
| November | 13.7°C | -0.4°C | 68 mm | 8.9 | 10 h 01 | 28 | Good coverage |
| December | 7.9°C | -2.5°C | 113 mm | 11.2 | 9 h 29 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 23.9°C12 Jan 2020 | -22.2°C22 Jan 2025 | 55 mm23 Jan 2006 | 128 mm2006 · driest 39 mm in 2015 | 22 |
| February | 27.2°C21 Feb 2018 | -27.8°C20 Feb 2015 | 82 mm17 Feb 2023 | 184 mm2018 · driest 33 mm in 2026 | 22 |
| March | 31.7°C21 Mar 2012 | -20.0°C6 Mar 2015 | 55 mm5 Mar 2015 | 184 mm2008 · driest 49 mm in 2007 | 22 |
| April | 32.8°C30 Apr 2017 | -6.1°C3 Apr 2021 | 60 mm30 Apr 2014 | 296 mm2011 · driest 46 mm in 2010 | 22 |
| May | 34.4°C23 May 2010 | -2.2°C4 May 2005 | 144 mm3 May 2010 | 283 mm2010 · driest 37 mm in 2007 | 22 |
| June | 40.0°C30 Jun 2012 | 5.0°C2 Jun 2025 | 72 mm24 Jun 2017 | 208 mm2019 · driest 37 mm in 2012 | 22 |
| July | 41.1°C8 Jul 2012 | 8.3°C2 Jul 2008 | 62 mm21 Jul 2010 | 234 mm2009 · driest 64 mm in 2006 | 21 |
| August | 38.3°C17 Aug 2007 | 6.7°C29 Aug 2025 | 65 mm27 Aug 2005 | 159 mm2022 · driest 6 mm in 2025 | 21 |
| September | 38.3°C4 Sep 2011 | 1.7°C23 Sep 2012 | 87 mm10 Sep 2018 | 278 mm2018 · driest 14 mm in 2019 | 21 |
| October | 36.1°C4 Oct 2019 | -5.6°C31 Oct 2008 | 61 mm9 Oct 2017 | 173 mm2006 · driest 3 mm in 2024 | 21 |
| November | 29.4°C3 Nov 2016 | -12.8°C25 Nov 2005 | 40 mm12 Nov 2022 | 161 mm2011 · driest 27 mm in 2012 | 21 |
| December | 23.3°C27 Dec 2016 | -19.4°C24 Dec 2022 | 65 mm17 Dec 2019 | 221 mm2019 · driest 49 mm in 2017 | 22 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 25 | 2 | 5 |
| February | <1 | 0 | 22 | 3 | 5 |
| March | 2 | <1 | 18 | 4 | 3 |
| April | 8 | <1 | 7 | 4 | <1 |
| May | 16 | 5 | 1 | 4 | 0 |
| June | 25 | 10 | 0 | 4 | 0 |
| July | 28 | 16 | 0 | 4 | 0 |
| August | 28 | 14 | 0 | 3 | 0 |
| September | 20 | 8 | 0 | 3 | 0 |
| October | 9 | <1 | 5 | 3 | 0 |
| November | <1 | 0 | 19 | 3 | <1 |
| December | 0 | 0 | 22 | 4 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 35% | 9% | 46% | 1.9–8.6°C |
| February | 2% | 37% | 10% | 54% | 2.1–12.2°C |
| March | 15% | 36% | 11% | 49% | 10.7–17.2°C |
| April | 37% | 37% | 13% | 51% | 17.7–22.6°C |
| May | 50% | 41% | 13% | 54% | 22.0–26.4°C |
| June | 63% | 36% | 13% | 48% | 26.8–29.3°C |
| July | 63% | 37% | 15% | 50% | 28.4–31.0°C |
| August | 71% | 29% | 10% | 33% | 27.6–30.6°C |
| September | 70% | 27% | 11% | 28% | 24.4–28.8°C |
| October | 42% | 28% | 9% | 37% | 19.1–22.2°C |
| November | 13% | 30% | 9% | 40% | 10.9–16.4°C |
| December | 2% | 36% | 12% | 51% | 5.9–11.0°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page